When the user is out of zone and on checkout screen the popup is being shown saying "Result not defined".

Is your feature request related to a problem? Please describe.
When the user selects the zone and orders the food and then adds the address and that address is out of the delivering zone then this error is being produce.

Describe the solution you'd like
When this scenario happens then at the place order screen there should be a popup saying "We don't deliver in this area. Please add your address correctly." And after adding the address again the user should be redirected to the place order/checkout screen.

Start at the checkout or place-order screen and trace the address and delivery-zone validation flow. Reproduce an order whose address is outside the selected zone, then verify that the checkout shows the requested delivery message and that correcting the address returns the user to checkout.

Written by the indexing model from the issue text.